* {
    box-sizing: border-box;
}

body {
    background-color: #7bdaf3;
    font-family: sans-serif;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    margin: 0;
    padding-top: 3rem;
}


.add {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background-color: #9ec862;
  color: #fff;
  border: none;
  border-radius: 3px;
  padding: 0.5rem 1rem;
  cursor: pointer;
}

.note {
   background-color: #fff;
   box-shadow: 0 0 10px 4px rgba(0, 0, 0, 0.1);
   margin: 30px 20px;
   height: 400px;
   width: 400px;
}

.note .tools {
  background-color: #9ec862;
  display: flex;
  justify-content: flex-end;
  padding: 0.5rem;
}

.note .tools button {
  background-color: transparent;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
  margin-left: o.5rem;
}

.note textarea {
  outline: none;
  font-family: inherit;
  font-size: 1.2rem;
  border: none;
  height: 400px;
  width: 100%;
  padding: 20px;
}

.main {
  padding: 20px;
}

.hidden {
 display: none;
}